Xiao  [1]} predicted the viewpoint of a given panoramic observation.
The prediction generates rough panorama structure and compass-like prediction in
determining the location of the viewpoint in 360.
Georgoulis  [2]} estimated environmental map from the reflectance properties of input images.
They utilized these properties from a foreground object to estimate the
background environment in a panoramic representation.
In contrast to these works, ours does not rely on reference images as the input, and it
synthesizes actual panoramic imagery.
